# A111581 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 2 4 3 5 3 6 4 7 5 8 6 9 7 10 8 11 8 12 9 13 9 14 10 15 10 16 11 17 12 18 12 19 14 20 14 21 15 22 16 23 16 24 17 25 17 26 18 27 19 28 19 29 21 30 20 31 21 32 22 33 22 34 24 35 24 36 25 37 26 38 27 39 29 40 29 41 31 42 32 43 32 44 34 45 34 46 35 47 36 48 37 49 38 50 39 51 40 52 41 53 42 54 44 55 44 56 45 57 46 58 47 59 48 60 49 61 49 62 50 63 50 64 51 65 51 66 52 67 53 68 53 69 55 70 55 71 56 72 57 73 57